El ocaso de la energía renovable

PRAGA – Todavía muchos creen que las energías renovables nos liberarán de los combustibles fósiles en breve. Pero por desgracia, todo indica lo contrario.

Según datos de la Agencia Internacional para la Energía, en 1971 (el primer año del cual la AIE tiene estadísticas globales), el 13,12% de la energía mundial procedió de fuentes renovables. En 2011, esa cuota disminuyó al 12,99%. Pero una encuesta reciente señala que los estadounidenses creen que en 2035 el uso de energías renovables ascenderá al 30,2% del total, cuando en realidad, es probable que la cifra sea 14,5%.

En la actualidad, la energía solar y la eólica constituyen una fracción ínfima de las fuentes renovables: alrededor de un tercio de punto porcentual. La enorme mayoría de la energía renovable procede de la biomasa, es decir, madera y otros materiales vegetales, la fuente de energía más antigua de la humanidad. Y si bien la biomasa es renovable, a menudo su uso no es ni conveniente ni sostenible.

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